Goodman ComfortNet ACVC9 Technical Manu Technical Manualal page 22

BLOWER PERFORMANCE SPECIFICATIONS
Ramping Profile
Note: The multi-speed circulator blower also offers several custom ON/OFF ramping profiles. These profiles may be used
to enhance cooling performance and increase comfort level. The ramping profiles are selected using DIP switches 5 and
6. Refer to the following figure for switch positions and their corresponding taps. Refer to the bullet points below for a
description of each ramping profile. Verify CFM by noting the number displayed on the dual 7-segment LED display.
1. All furnaces ship as high speed for cooling. Installer must adjust blower speed as needed.
2. For most jobs, about 400 CFM per ton when cooling is desirable.
3. Do not operate above .5" w.c. ESP in heating mode. Operating CFM between .5" and .8" w.c. is tabulated for cooling purposes only.
4. Continuous fan speeds of 25%, 50%, 75% of maximum cooling airflow are available when using a communicating thermostat and 25%, 50%, 75%, 100%
of maximum cooling airflow are available in legacy mode by setting dip switches
22
100% CFM
OFF
Profile A: provides only an OFF delay of one (1)
minute at 100% of the cooling demand airflow.
50% CFM
OFF
1/2 min
Profile B: ramps up to full cooling demand airflow by first
stepping up to 50% of the full demand for 30 seconds. The
motor then ramps to 100% of the required airflow. A one (1)
minute OFF delay at 100% of the cooling airflow is provided.
OFF
Profile C: ramps up to 85% of the full cooling demand airflow
and operates there for approximately 7 1/2 minutes. The motor
then steps up to the full demand airflow. Profile C also has a
one (1) minute 100% OFF delay.
OFF
Profile D: ramps up to 50% of the demad for 1/2 minute,
then ramps to 85% of the full cooling demand airflow and
operates there for approximately 7 1/2 minutes. The motor
then steps up to the full demand airflow. Profile D has a 1/
2 minute at 50% airflow OFF delay.
100% CFM
1 min
100% CFM
100% CFM
1 min
100% CFM
OFF
OFF
OFF
OFF